<!DOCTYPE html>
<html>
<head>
    <meta charset="utf-8">
    <title>弹跳彩球</title>
    <link rel="stylesheet" href="style.css">
</head>

<body>
<h1>弹跳彩球</h1>
<p>还剩多少个球</p>
<canvas></canvas>

<script src="main.js"></script>
</body>
</html>